# Kerlig

In-context AI writing assistant for macOS integrating 350+ models.

- Category: Productivity
- Pricing: From $47
- Tags: Writing Tools, Content Creation
- Website: https://kerlig.com/?via=aigregator
- Aigregator page: https://aigregator.com/tools/kerlig
- API: https://x402.aigregator.com/v1/tools/kerlig

## Overview
Kerlig is an AI writing assistant designed for macOS that integrates seamlessly into your workflow without requiring context switching. It supports over 350 AI models including OpenAI, Anthropic, Google, Groq, and OpenRouter, allowing you to use your preferred AI providers with your own API keys. The tool helps with writing emails, Slack replies, Jira tickets, proofreading, grammar correction, and chatting with documents like PDFs, webpages, and images.

The platform is built for professionals and teams who want to enhance their written communication at work while maintaining privacy. Users can customize actions to fit their workflow, use global hotkeys for faster access, and leverage reasoning models for multi-step research. Messages are sent directly to AI providers and encrypted on the user's Mac. One notable limitation is that it's exclusively available for macOS, limiting accessibility for Windows or Linux users.
## Key Features
- 350+ AI model support with one-click switching
- Built-in and custom actions for writing tasks
- Document attachment and analysis (PDFs, ebooks, images)
- Grammar and spelling correction
- Writing tone personalization and customization
- Global hotkeys and shortcuts for quick access
- Chat interface with message editing capabilities
- Chat history and citations with linked sources
- Reasoning models with chain-of-thought visibility
- Local model support (Apple Foundation Models, Ollama, LM Studio)
- Team deployment via CLI
- Deep research using reasoning models with online data
- Privacy-first architecture with local encryption

## Use Cases
- Writing and proofreading professional emails and Slack messages
- Fixing grammar and spelling errors in real-time before sending
- Summarizing long documents, webpages, and PDFs
- Creating Jira tickets and technical documentation
- Overcoming writer's block and tailoring writing tone for different contexts

## Who It Is For
- macOS users seeking efficient writing assistance
- Professionals and teams in business environments
- Students and academics
- Content creators and writers
- Enterprise teams requiring remote deployment options

## Pros
- Eliminates context switching by integrating directly into any macOS app without leaving your workflow
- Supports 350+ AI models with user-provided API keys, giving maximum flexibility and control over costs
- No subscription required—single lifetime purchase with per-token pricing model
- Privacy-focused design with end-to-end encryption and direct communication to AI providers

## Cons
- Exclusive to macOS platform, making it inaccessible for Windows and Linux users
- Requires manually providing API keys from AI providers, adding setup complexity for less technical users
- Limited to working within macOS applications, reducing cross-platform utility

## Pricing Plans
- Basic License: $47/one-time
- Pro License: $67/one-time
- Team License: $297/one-time

## Alternatives
- [Bearly AI](https://aigregator.com/tools/bearly-ai)
- [ChatGPT for Google](https://aigregator.com/tools/chatgpt-for-google)
- [Ask Your PDF](https://aigregator.com/tools/ask-your-pdf)
- ChatGPT Plus

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Source: Aigregator — AI tools directory. https://aigregator.com/tools/kerlig